FIELD: medical engineering.
SUBSTANCE: device has rigid mask of 0.8 l by volume. Nose, mouth and chin are introduced into the mask. The mask has articulated support member attached to it for having rest on the nose. Rubber member movable in fastening mask holes is available for fixing the mask on head. Space between the mask and face and pressure against the face are controlled with the movable member.
EFFECT: facilitated breathing mixture selection.
2 cl, 1 dwg
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